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(No Model.)

G. HATTON.

GONVERTER FOR THE MANUPAGTURE OF IRON AND STEEL. No. 308,963.

Patented Dec. 9, 1884.

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GEORGE HATTON, OF HAGLElQilOUNTY OF YVOROESTER, ENGLAND.

CONVERTER FOR THE MANUFACTURE -OF IRON AND STEEL.

SPECIFICATION forming part of Letters Patent No. 308,963, dated December9, 1884.

Application filed September 15, 1884. (No model.) Patented in EnglandJune 27, 1884, X0. 9,500.

.1 0 ail whom, it may concern:

Beit known that I, Gnonen Hn'r'ron, a subject of the Queen of GreatBritain, residing at Hagley, in the county of lVorcester, Eng- 1 land,have invented certain new and useful Improvements in Converters Employedin the Manufacture of Iron and Steel, (for which I have applied forLetters Patent in Great Britain, my application bearing date the 27thday of June, 1884:, and being numbered 9,500, but have not yet obtainedthe grant of such Letters Patent,) of which the iollowing is aspecification.

In converters employed in the manufacture of iron and steel as usuallyconstructed and arranged, considerable injury is frequently done to theblast boxes and valves through which blast is supplied to the tuyeres onaccount of the leakage of the metal through the converter-lining; andthe object of this invention is to provide against such inj ury, andalso to simplify the lower part of the convertor, (that is, the partcontaining the tuyeres and the part of the lining liable to be mostreadily burned out,) which is in this case re movabl.e,by omitting fromsuch lower part the usual blast chamber or boxes. I attain this objectby making the lower part of the con verter, containing the tuyeres andthat part of the lining which is liable to be most rapidly burned out,removable from the upper part of the converter, substantially as hasbeen sometimes heretofore adopted; but the blast receiver or boxes, withany necessary blastvalves, are carried around the upper part of theconverter, so as to dispense enti rel y with a blast chamber or boxesaround the lower part thereof, and the blast is conveyed there from bymeans of a separate supply-pipe to each tuyere. These supply-pipes areconstructed so that they may be easily disconnected at any convenientpoint in their length, in order that the lower part of the converter maybe readily removed for replace ment with a duplicate.

My invention will. be clearly understood by reference to theaccompanying drawing, which of a fixed converter carried by columns, soas to admit of the ready removal and replacement of the bottom.

A A are the columns supporting the upper part, B B, of the converter.The lower part, 0, of the converter is held by means of a flange orangle ring, D, and bolts therethrough to a flange or angle ring, E, atthe bottom of the upper part of the converter, so that the lower part,(1, may be readily removed from the upper part and replaced with aduplicate. The lower part, G, contains the tuy'eros, of ganister orother refractory material, one of which is shown in section at F, andalso that part of the furnace-lining which islialole to be most quicklyburned out.

G G are air chambers or boxes carried with the upper part of theconverter, and therefore remaining fixed, while the lower part isremoved for relining.

H is a plain ball'ler -valve for regulating the passage of blast to atuyere, and J J, &c., are blastpipes. A separate pipe, J, passes downfrom each blast chamber or box G to each of the tuycrcs. Each pipe Jforms a ball-andsocket or universal joint with the 5 short pipe K,containing thevalve, and this j joint is tightened up by means of abridle or strap, I1, and setscrcw ll]: thereunder, as shown. llach pipe.l' is connected, also, by

means of a flangejoint, N, with a mounting,

0, on the casing of the lower part, 0,01 the converter. The holes a athrough the flanges at a joint, N, are elongated in vertical direc-'tiou, and are open to the edges of the flanges, as shown, so as toallow, respectively, for one of the flanges not being exactly verticallyopposite to the other, and to facilitate the removal of the bolts. K isthe usual tappinghole.

When it is desired to remove the lower part, 0, ol' the converter, eachflange-joint N is disconnected, and each setscrew M at the bottom of abridle, L, is slackened, and the pipes lettered J are then pulled backat their lower ends to be as clear from the mounting O as may bedesired, and are held in such position by tightening up the set-screwsM. \Vhen a converter-botton1, G, has been re moved and replaced, thepipes J are of course again connected up.

I) Z) are sight and cleaning holes forthe tuyeres. The joint between theupper and lower parts of the converter is made perfectly sound byramming ganister in around the annular wedgeshaped space 0, formedbetween the bottom of the upper lining and the top of the lower lining.

P P are rails upon which a trolley is run for bringing in and removingconverter-bottoms, and such trolley may, if desired, be raised andlowered by means of a hydraulic ram or any convenient means, tofacilitate fixing and unfixing the bottoms. The columns A A are shownbroken in their length for convenience of illustration. Sufficient roomis allowed, preferably below the converter, to admit of the bottom beinglowered clear of all obstructions to its removal. It will now be seenthat the blast chambers or boxes remain in position upon the removal ofthe lower part of the converter, and that, if during the working of theconverter any metal escapes through the lining of the lower partthereof, such metal cannot find access to the blast chambers or boxes orto the valves immediately thereunder. The removable bot tom is also muchsimpler and less expensive than when an air chamber or boxes areattached thereto.

My invention has been described and illus trated specially withreference to a fixed converter; but it will be readily understood to beapplicable also in the case of a Bessemer or tipping converter, in which(as is sometimes done) the tuyeres are arranged in the side of theconverter for the purpose of blowing with a low-pressure blast, insteadof in the bottom,

as is usual when a high-pressure blast is em- 35 ployed.

Having thus stated the nature of my said invention and particularlydescribed the manner of performing the same, I declare'that what I claimis 0 1. In a converter employed in the manufacture of iron and steel,the combination, with the removable bottom ofthe converter, containingthe-tuyeres, of the upper part of the converter, carrying theblast-chamber, and 45 means, substantially as described, for carryingthe blast from the blast-chamber to the tuyeres, substantially as andfor the purposes set forth.

2. In a converter employed in the manufacture of iron and steel, thecombination of the blast-boxes G with the blast-pipes J and theremovable bottom 0, all constructed and arranged substantially as andfor the purpose herein described and shown.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

, GEORGE HATTON. Witnesses:

STEPHEN WATKINS, ROBERT M. LISTER.

